Parking Brake Release
Have always been under the impression that wnen we release the Parking Brake (Only familiar with B737, B744, B773) we should let the lever release unaided (so it makes the noise for the CVR).
Just flew with a "guru" (B773) and he claimed that it not a requirement on this type, as it is an "electric" aeroplane.
I understand it sounds minor, but does anyone have a Boeing reference or something I could use to clarify this?